Electricity: circuit makers and breakers – Fluid pressure – Flow-responsive type
Patent
1977-09-19
1979-03-06
Tolin, Gerald P.
Electricity: circuit makers and breakers
Fluid pressure
Flow-responsive type
340610, 73228, H01H 3540
Patent
active
041432550
ABSTRACT:
A tubular section is provided through which fluid can flow. A paddle is mounted in the tubular section and is biased by a spring to a "no-flow" position, at least partially across the tubular section. Fluid flowing through the tubular section rotates the paddle to a "flow" position which is aligned and not across the tubular section. The device has been improved by having a signaling means in the form of a magnet mounted on the paddle in the tubular section for signaling when the paddle is in one of its positions. A switch mounted adjacent the tubular section receives the signal from the magnet and activates an indicator when it receives the signal so that the indicator indicates the position of the paddle. The paddle covers approximately one half of the cross section of the tubular section when the paddle is in the no-flow position. A baffle may be provided adjacent the paddle to direct flow to the portion of the tubular section through which the paddle moves. The paddle may pivot in part on a bushing in the lower part of the tubular section, and a relief in the tubular section intersects the bushing to relieve the vacuum caused by water flowing over the bushing. The vacuum, if not relieved by the slot, would pull the portion of the pivot in the bushing deeper therein thereby locking the paddle.
REFERENCES:
patent: 2600309 (1952-06-01), MacDonald
patent: 3185128 (1965-05-01), Moore
patent: 3354716 (1967-11-01), Wiebe
patent: 3360621 (1967-12-01), Liddell
patent: 3387489 (1968-06-01), Young
patent: 3559197 (1971-01-01), Jarvis
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